iOS: CARROT, the to-do app with the personality of a crazed robot, has added a few new features, including reminders, recurring tasks, and Siri integration. The celebrate the update, CARROT is free today.

We're fans of CARROT because it makes your to-do list fun (and a little terrifying) by shaming you into getting things done. Every time you complete a task on your to-do list you level up, and that unlocks new features. This new update makes CARROT a lot more useable as a full-fledged to-do list. You can set reminders and due dates for any task when you reach level 18, create recurring tasks at level 28, and you get Siri sync at level 24. It's an interesting approach to a to-do list, and if you've been shying away because of the lack of more advanced features now might be the time to give it another look.